Roller-bearing.



E. A. PERKlNS.

RULLER HEARRNG.

APPLICATloN min APR. 7, me.

1,212,253. Patented Jan. 16, 1917.

Romana UNITED srirrns ParENT OFFICE.

EDWIN A. PERKINS?, 0F JAMAICA, NEW YORK.

ROLLER-BEARING.

Application tiled April?, 1916.

lie it known that l. llnwlN lnnniss, a citizen ol' the llnited States. and resident ot' Jamaica. in the county of Queens and State of New York. hare invented rertain new and useful Improvements in Roller-llearings, of whirh the following is a slaa'ifiration.

This invention relates to anti-frietion bearings and is pin-lirularly applicable to roller bearings.

rl`he principal objert of the in\e.ntion is to produre. a simple roller beariner in which the rollers ran be rery readily inserted, and ronstrurled so that the bearing.r ran elleetively resist end thrust forces.

A further ohlieet of the invention is to construct the bearing in sueh a way as lo forni an ell'ertire rluide lor the rollers and preventingr an)l longitudinal shiftingr morenient of the rollers on the rares of the bearing.

Further objects ol: the invention will ap pear hereinafter.

The invention ronsists in the general rombination of parts and in the simple features described in the following;` speeiliraton. while the broad srope of the invention set forth in the appended rlaims.

In the drawing' Figure. 1 is an end eleva tion ot' the bearing` embodying my inren tion partially broken away and shown in section. Fig. .2 is a longitudinal central seetion through the bearing shown in Fig. 1. Fig. 3 `is a View similar to Fig. 1, but showH ing another type of roller bearing in which a separator or cage is usr-d for the rollers. Fig. 4 is a longitmjlinal and rei-tical seetion of the bearing illustrated in Fig. Il. Fig. 5 is a side elevation .showing a detail. Fig. is a longitudinal. vertical sei-lion ol' a bearing embodying my invention, but employing conical rollers. l

The bearing p'refeably comprises an in ner ring 1 and an ,outer ring 2, and the adjacent faces of these rings are formed into race-ways or races 3 and 4 respectively for rollers 5. These rings also have projecting Shoulders (i and 7 respectively to engage the Same ends of the rollers, and these shoulders operate to take the end thrusts of the bearing at one end. At the other end 'of the bearing the inner ring has an annular edge 8 and the outer ring has opposite to the annular edge 8 smother annular edge 9.

Specification of Letters Patent.

Patented Jan. 16, 1917.

Serial No. 89,509.

ln order to insert the rollers in the bearing, ,l prefer to form the annular edges 8 and l) with recesses or notches 10. which when' opposite to earh other (see Fig. 1) l'orm a lillin;r opening through whirh eaeh of the rollers. may be inserted by a lon- I fitudinal morennfnt so as to pass the roller into the spaee between the races S-and 4. ln order to talee the end thrustsl at this end o1 the b iaringf and also to prevent any lengt tudinal shifting imnement of the rollers as they more past these recesses or notches 10, l prel'er to provide means including' a split ring.;` and. il' desired, l ma \v employ two such split rings; for example. an inner split ring 12 and anlonter split ringr 11. The annular edges H and .l are preferably undercut so as to form ring seats 1?) and 14 to receive these split rings respertirely. These split rings are preferably of resilient material such as spring steel or brass. The inner split ring tends to assume a relatirely small diameter, smaller than the diameter of the annular opening 15. whirh is formed between the inner ring r and the outer ring. After the rollers ha re been put in platte this split ring ll is slightly expanded and moved laterally into the annular opening 15 so as to come opposite the ring seat 13. \\'hereupon when the ring; is released it will assume a smaller diameter and plare itself on its ring seat 13.

'l`lie outer split ring' 1;). tends to assume a relati\ely lai-gre. diameter with respect to the annular opening' 15. ln order to place this riuj.: in position. Vl prefer to press it so that its ends 1li will overlap earh other (see Fig. 5l. When sullieieutlr compressed in this way the. rime may be passed through the annular opi-ninjalr 15. and then permitted .to expand into its ringe' seal ll. l preferto form the end lt of this ringn with the in elined end facesl17 and the ring is preferably overlapped in the manner indicated `in Fig. 5 so that when it re-expand`s the end" fares 1T will lie near each other and will rire the el'eet of aY scart' joint. that is to say,v the extreme ends of t'he ring project beyond nach other. whieh feature operates to Insure r that the ends oi the rollersare constantly abutting" the ring. and before the end of the roller passes off of one end of the ring it is already in Contact with the other end of the ung. i y f Evidently,` the annular opening 15,` at

least at the point where the ends 16 are overlapped, should be more than twice the width of the ends of the ring, but it is also obvious that the ends of the ring could be overlapped at the filling opening to permit the insertion of the ring.

My invention is applicable to a roller bearing of the type shown in Figs. 1 and 2, which carries loose rollers, but it is also applicable,to other types of roller bearings; for example, a bearing in which the rollers are employed with separators. Such a bearing is illustrated in Figs. 3 and 4, in which the rollers 1G are carried/in a separator or cage 16". In assembling the parts of this type of bearing the cage 17 is put in place Without its follower ring 18, and the rollers are inserted one by one at the filling opening, which is produced by the alinement of the oppositely placed recesses 19. `When all the rollers have been inserted the split rings 20 and 21, which correspond to the rings 11Y and 12, are inserted as described above, and after that the follower 18 is secured in the annular opening; that is. it is attached to the body of the cage by means of suitable fastening devices such as screws 22. In both types of the Ybearing I prefer to form the ends of the split rings with inclined faces so that the scarfed effect is produced on both split rings.

Y As another exampleof an application of my invention to a roller bearing, I shall describe its application to a bearing employing conical rollers; for example, such as the conical rollers 23 (see Fig. 6). This bearing includes aninner ring 24 and an outer ring 25, which may have a conical face 26. The annular edges 27 and 28 of these rings project toward each other so as to form shoulders, and at one point these shoulders may he recessed as indicated by the' dotted lines 29 and 30 so as to form an opening to permit the insertion of the rollers 23. After the rollers are inserted they are held in place by an inner split ring 31 and an outer split ring 32 which may be inserted through the annular opening 33 of the bearing in the same manner as that described above in connection with the type of bearing shown in Figs. 1 and 2.

Attention is called to the fact that the rollers have substantially flat bearing faces adjacent the split rings which are Hush with and bear against the inner faces of the rings. This form of the ends of the rollers permits of the free expansion or contraction of the split ring in the plane of the bearing` faces of the rollers. This enables the split rings to be readily put inf place without necessitating any excess of longitudinal play for the rollers after the rings are in place.

It is understood that the embodiment of the invention set forth herrin is only one of the many embodiments the invention may take, and I do not wish to be limited in the practice of the invention nor in my claims to the particular embodiment set forth.

What I claim is;

1. A roller bearing comprising the combination of an inner ring having a race for the rollers and having a shoulder integral with the ring to abut the rollers at one end, an outer ring having a race for the rollers and having an integral shoulder to abut the same ends of the rollers, said shoulders operating to take the end thrusts in the bearing on one end, said rings having opposite annular edges with recesses therein coperating when opposite to each other to form a filling opening to permit the insertion of each roller by a longitudinal movement into the space between said races, means including a split ring mounted in one of Isaid annular edges and projecting across the filling opening to prevent the rollers from shifting longitudinally in the races and thereby taking the end thrusts of the bearing at the other and, and a plurality of rollers in said races abutting said shoulders and said split ring, said rollers adjacent said split ring having substantially flat bearing faces flush 'with the inner face of said split ring whereby the said bearing faces of said rollers permit the free expansion or contraction of the split ring in the plane of the said bearing faces of the rollers.

2. A roller bearing comprising the combination of an inner ring having a race for the rollers and having a shoulder integral with the ring to abut the rollers at one end, an outer ring having a race for the rollers and having an integral shoulder to abut the saine ends of the rollers, said shoulders operating to take the end thrusts in the bearing at one end, said rings having opposite annular edges with recesses therein coperating when opposite each other to form a filling opening to permit the insertion of each roller by a longitudinal movement into the space between said races, said annular edges having annular ring seats formed therein, and a split ring mounted in each of said annular ring seats and projecting across the edges of the filling opening to prevent the rollers from shifting longitudinally in the races; said split rings taking the end thrusts in the bearing at the other end, and a plurality of rollers in said races abutting said shoulders and said split rings, said rollers adjacent said split rings having substantially flat bearing `faces flush with the inner faces of said s lit `rings whereby the said bearing faces o said rollers permit the free expansion or contraction of said split rings in the plane of said bearing faces of said rollers.

binationof an inner ring and an outer rlng with an annular-opening between said rings,

Said rings each having a rnee for rollers and each haring a projeetinfir shoulder to abnt the same ends of the rollers, the said rings adjacent the opposite ends of the rollers each haviingt an undercut annular rino' seat. an inner split ring tending to assume a rrlatively small diameter and expansililv so as' to be insertilile through said :innnlar openinter and to enable the said ring to vontraet into the annular rine seat of said inner rinlr. an outer split ring: tendiner to assume a relavr tively large diameter and rontraetilile to pew mit the saine to he inserted through said an nnlar opening. so that said outer split ring can eXp-.md into the said ring seat of Said outer ring, and a plurality ot' rollersK ahnt ting at one end against said shoulders and at the other end against said split rings.

4. A roller bearingr rolnlvrising: the eo1nlJination of an inner ringr and an outer ring with an annular opening between said ri rigs. Said rings eacli haring a, rare for the rollers and each having;F a projecting shonlder to alilzt the saine ends oi' the rollers. the said rings adjacent the opposite ends of the rollers each havingr an under-rut annular ring seat, an inner split ring tending to assume a. relatively small diameter and expansilile so as to be insertihle through ,said annular opening and to enable the said ring to eontract into the annular ring seat of said inner ring', an outer split ring tending to assume a relatively large diameter and construr'ted .so that its ends may overlap to permit the saine to be inserted through said anlular opening, and so lthat Said outer split ring van expand into the said ring seat of said outer ring,y said annular opening eonstrurted of more than twice the width of said outer split ring to permit the overlapped ends of said outer ring to be passed therethrough.

A roller bearingr comprising the combination ol' an inner ring having a raue for the rollers and an outer ring having n race for the, rollers, said bearingr having an annular opening between said rings, with reresses in the annular edges thereof eonstructed to aline and Vl'ornl a filling opening to perniit the insertion of the rollers by a longitudinal nuwenient thereof into the Space between the racen1 and a split ring retained by the annular edge on each Side of Said annular opening;l and projecting across the reresses to prevent a longitudinal shifting of the rollers in the bearing.

Signed at New York city, in the county ol' New York, and State of New York this lirst da)| ot' April A. D. 191V.

EDlVIN A. PERKINS. 

